venn diagrams 3.2j-3.2l

Question 1

3. There are 80 students in year 11.
   9 students study French and German.
   35 students only study French
   2 students do not study French or German.

Answer 1

check answer of corbett

Question 2

(b) Work out how many students study only German.

Answer 2

34

Question 3

At a wedding, the guests may have ice cream or custard with their desser

a(a) How many guests had custard?
(b) How many guests had ice cream and custard?
(c) How many guests went to the wedding?

Answer 3

a)43
b)9
c)107

Question 4

q 5

write what numbers are in set-
(a) A∩B
(b) A∪B
(c) A’

Answer 4

a)4 , 9
b) 4, 5 , 9 ,16, 25 , 36
c)5 ,17 ,40

Question 5

A group of friends have been surveyed.
38% have been to Canada.
80% have been to France.
11% have been to neither Canada or France.
Find the percentage of the group that have been to Canada and France.

make a venn diagram

Answer 5

29%

Question 6

In a company there are 110 workers.
90 workers like tea.
41 workers like coffee.
25 workers like both tea and coffee.
Work out how many workers like neither tea or coffee.

do a venn diagram

Answer 6

4